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26 results on '"Hu, Qiuli"'

1. Efficient Utilization and Optimal Allocation of Agricultural Water Resources in the Yellow River Basin

Author

Zhao Ying, Wang Haixia, Wang Yi, Niu Zhongen, Hu Qiuli, Zhao Fen, Suo Lizhu, Xu Zhenghe, and Chen Xiaobing

Subjects
Yellow River Basin, agricultural water and soil resources, eco-hydrological process, water use efficiency, water resource allocation, Engineering (General). Civil engineering (General), TA1-2040
Abstract

Water resources are basic natural and economic resources of strategic significance and are vital for the high-quality agricultural development and ecological protection of the Yellow River Basin. To implement the national strategy of ecological protection and high-quality development in the Yellow River Basin, it is significant to improve the use efficiency and allocation of water resources in the basin. This study focuses on the high-efficiency utilization and sustainable development of agricultural water resources, adopts the research methods of systematic hydrology, and adheres to an all-encompassing approach to food. Based on the theories and technologies for the optimal allocation of water resources in the process of high-quality agricultural development, it explores the mechanism for the hydrologic process of farmlands and investigates the challenges faced in terms of water use efficiency improvement, optimal allocation of agricultural and ecological water resources, collaborative optimization of water, food, and ecosystem, and construction of farmland information systems. Countermeasures are further proposed. This study reviews the agricultural water-saving and water resource allocation capabilities of the whole Yellow River Basin from a water cycle perspective and is expected to provide basic support for the optimal allocation of land and water resources, high-quality agricultural development, and ecological protection collaboration in the Yellow River Basin.

Published
2023
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17. Salivary endocrine response following a maximal incremental cycling protocol with local vibration

Author

Jemni, Monèm, Marina,Michel, Delextrat, Anne, Tanner, Amy, Basset, Fabien A., Gu Yaodong, Hu Qiuli, Zhou Huiyu, Mkaouer, Bessem, Konukman, Ferman, Jemni, Monèm, Marina,Michel, Delextrat, Anne, Tanner, Amy, Basset, Fabien A., Gu Yaodong, Hu Qiuli, Zhou Huiyu, Mkaouer, Bessem, and Konukman, Ferman

Abstract

The aim of this study was to compare the effects of vibration (Vib versus noVib) during a maximal graded cycling exercise on hormonal response, precisely on cortisol (C) and testosterone (T). Twelve active males (25 ± 5yrs; 181 ± 5cm; 80.7 ± 11.1kg) randomly performed two maximal incremental cycling tests on two separate days and at the same time of the day (09:00). The protocol consisted of incremental steps of 3 min duration performed on a PowerBIKETM that induces vibration cycling. The study was a repeated measures design and participants performed the test with and without vibration. Gas exchange and heart rate (HR) were continuously assessed and blood lactate (Bla) was recorded at the end of each incremental stage. Saliva samples were collected before and immediately after the test, and analysed for (C) and (T). The results show that C and T increased in both cycling conditions; however, the C’s magnitude of change was significantly higher by 83% after Vib cycling in comparison to the no Vib (p = 0.014), whereas the T’s magnitude of change were not statistically different between trials (p = 0.715). Vibration induced a decrease of the T/C ratio (p = 0.046) but no significant changes were observed following noVib (p = 0.476). As a conclusion, the investigation suggests that adding mechanical vibration to cycling may potentiate a catabolic exercise-induced state, which could have potential clinical implications in rehabilitation and injury treatment. Sport experts should take this message home to carefully plan the recovery process and time during training and competitions.

Published
2020

26. The “Groundwater Benefit Zone”, Proposals, Contributions and New Scientific Issues

Author

Zhao, Ying, Qi, Ji, Hu, Qiuli, and Wang, Yi

Subjects
Science / Earth Sciences
Abstract

The groundwater has great potential for water resource utilization, accounting for about a quarter of vegetation transpiration globally and contributing up to 84% in shallow groundwater areas. However, in irrigated agricultural regions or coastal areas with shallow groundwater levels, due to the high groundwater salinity, the contribution of groundwater to transpiration is small and even harmful. This paper proposes a new conception of groundwater benefit zone in the groundwater-soil–plant-atmosphere continuum (GSPAC) system. Firstly, it analyzes the mutual feedback processes of the underground hydrological process and aboveground farmland ecosystem. Secondly, it elaborates on the regional water and salt movement model proposed vital technologies based on the optimal regulation of the groundwater benefit zone and is committed to building a synergy that considers soil salt control and groundwater yield subsidies. Finally, based on the GSPAC system water-salt coupling transport mechanism, quantitative model of groundwater benefit zone, and technical parameters of regional water-salt regulation and control, the scientific problems and development opportunities related to the conception of groundwater benefit zone have been prospected.

Published
2019

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